Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/2/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 10/02/2023 23:50:53 69.99, 178.34 73.67 10/02/2023 23:52:04 69.99, 178.32 73.66 0.74 71
2 10/03/2023 00:41:34 -69.86, -14.14 106.46 10/03/2023 00:41:34 -69.88, -14.19 106.44 3.15 0
3 10/03/2023 01:32:16 69.63, 153.51 73.32 10/03/2023 01:31:03 69.66, 153.15 73.36 14.31 73
4 10/05/2023 16:07:46 69.94, -65.80 74.64 10/05/2023 16:08:36 69.94, -65.87 74.64 2.77 50
5 10/05/2023 16:58:28 -69.85, 101.64 105.44 10/05/2023 16:58:06 -69.83, 101.61 105.46 2.64 22
6 10/05/2023 17:48:55 68.82, -89.59 73.55 10/05/2023 17:47:49 68.84, -92.06 73.57 99.15 66
7 10/08/2023 08:24:39 69.95, 49.96 75.68 10/08/2023 08:25:05 69.95, 50.03 75.68 2.87 26
8 10/08/2023 09:15:20 -69.81,-142.51 104.46 10/08/2023 09:14:36 -69.80,-142.56 104.47 1.97 44
9 10/10/2023 23:50:54 -70.34, -2.19 102.93 10/10/2023 23:52:05 -70.21, -1.37 103.06 33.91 71
10 10/11/2023 00:41:31 69.86, 165.86 76.61 10/11/2023 00:41:36 69.88, 165.80 76.62 2.62 5
11 10/11/2023 01:32:13 -69.77, -26.69 103.48 10/11/2023 01:31:06 -69.78, -26.70 103.47 0.92 67
12 10/13/2023 16:07:40 -69.95, 114.19 102.31 10/13/2023 16:08:39 -69.93, 114.12 102.33 3.38 59
13 10/13/2023 16:58:24 69.85, -78.34 77.60 10/13/2023 16:58:05 69.87, -78.32 77.62 3.08 19
14 10/13/2023 17:48:55 -69.17, 89.96 103.08 10/13/2023 17:47:45 -69.22, 88.43 103.02 60.49 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/2/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231002.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 10/02/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9